Insulated metallic window



Jan. 1951 A. G. BUREAU 2,536,351

INSULATED METALLIC WINDOW Filed Feb. 5, 1946 4 Sheets-Sheet I .nHHHh HM H HHII Jan. 2, 1951 A. G. BUREAU INSULATED METALLIC WINDOW 4 Sheets-Sheet 4 Filed Feb. 5, 1946 Patented Jan. 2, 1951 UNITED STATES PATENT" OFFICE 2,536,351 INSULATED METALLIC WINDOW corporation of Delaware Application February 5, 1946, Serial No. 645,510

1 Claim.

The object of the present invention is toprovide a window construction characterized by the provision of opposed sash units which are adapted to be received one within the other with an intermediate insulation mutually separating the units, the units holding between them a window glass structure which preferably consists of two spaced glass members, the sash being adapted however for any usual type of window glass. Further characteristics of the invention are the provision of lateral extensions carried by the sash units in such manner that when the units are assembled to form a window sash vertical chambers are provided at the side for receiving sash balance devices. Also, the units for the lower sash are provided with depending flanges which are spaced when the units are assembled, thus providing supports for contact with the base of the window frame and also serving as a double weather-seal. These and other objects of the invention will be described with reference to the accompanying drawings, in which:

Fig. 1 is a view in elevation, partly broken away and showing in full and dotted lines a window construction consisting of a frame and two vertically slidable sash members embodying the invention.

Fig. 2 is an enlarged vertical section broken away horizontally at each sash area and taken centrally of the structure shown in Fig. 1.

Fig. 3 is an enlarged view showing in elevation the structure Fig. 2 from the exterior thereof.

Fig. 4 is a fragmentary horizontal section taken through the window frame and both upper and lower sash members when the latter are brought opposite to each other as to the glass areas.

Fig. 5 is a schematic prospective view showing the two units of the upper sash in position for mutual assembly.

Fig. 6 is a view similar to Fig. 5 showing the two lower sash units in position for mutual assembly.

. Reference to Figs. 5 and 6 will readily show the general formation of the two sash units. Fig. 5 illustrates the sash units for the upper sash. The outer upper sash unit consists of a plane metallic member I having an opening for exposure of the window glass carried by said upper sash, and carried integrally by member I is a rearwardly projected rectangular glass frame 2. The rear unit of the said upper sash comprises a plane member 3 having an inwardly projected rectangular frame 4.

As shown in Fig. 2, the glass-holding frame 4 1s proportioned to be received within the frame 2, although this'arrangement may be reversed if desired; Also, the relative proportions of the frames 2 and 4 are such that they do not mutually contact when assembled. Disposed intermediate the members 2 and 4 is an insulation medium 5, Fig. 2-; so that the two units of the sash are insulated onefrom the other throughout.

It will be seen that as to each of the two sash units the glass-receiving opening is bounded by what may be considered as a flange which projects inwardly from the frame 2 or 4 as the case may be. This flange as to the outer sash unit provides an abutment for the insulation medium 5 and conceals said insulation at such point. The corresponding flange for the inner sash unit serves as a rectangular back stop for the window glass and its holding medium.

In Fig. 2, I have shown a window glass structure at 6 consisting of two spaced panes held in position by a plastic medium indicated at I, which may be ordinary putty.

Again referring to the upper sash arrangement, it will be seen that the members I and 3 extend laterally beyond their glass-holding frame members 2 and 4, as best shown in Fig. l, so as to provide at each side of the sash a vertical extending chamber adapted to receive sash-balancing means. Also, the members I and 3 project upwardly beyond their frames 2 and 4 so as to form an upper double weather-seal. As shown in Fig. 2, these projections may coact with a U shaped spring seal member 8 held on the overhead strip of the window frame 9 by any suitable means, such as, studs I B.

The base wall of frame member 2 is extended inwardly to form a horizontal flange at 2:0, Fig. 2, to hold weather-stripping such as that indicated at I0 for coaction with weather-stripping II carried by the lower sash.

The lower sash is generally similar to the upper sash. It consists of two units the outer unit being a plane face member I2 apertured to receive and to expose a window glass structure. Extending rearwardly and integrally with member I2 is a rectangular frame I3. The inner sash unit consists of a face member I4 apertured. for exposure of the window glass and integrally carrying a rectangular frame i5 which, in the embodiment shown, fits within frame I3 with the exception of an arrangement by which the upper bar of frame l5 and an outwardly projected extension I5atzc may lie over the upper bar of frame I3. To this end the vertical or side bars of frame I5 are cut away at I5a:, Fig. 6. If desired frame I! may be constructed of such area as to entirely encompass frame I3. 7

. Member 14 may carry an inwardly projected lip Mac for manual lifting of the lower sash. In either case the frame members l and I3 will be proportioned to. provide between them a clearance sufficient to receive an insulating medium 16. As

in the case of the upper sash, unit members 12 and 14 extend laterally in respect to their glassreceiving frames to provide vertical side chambers for receiving sash-balancing means. Also, said members have depending extensions relatively to their said frames to provide a double weatherseal, which may be supplemented by a yieldable weather-strip such as shown at 1650, Fig. 2.

Any suitable window frame construction may be employed in conjunction with my sash elements, that indicated at 9 including, in the present embodiment, a parting bead 28, although other guide means may be employed. The lower sash, as in the case of the upper sash, may be provided with either single-pane or double-pane window glass held in position by any suitable means as for example the plastic 1.

It will be understood that various modifications may be made in the form and arrangement of the elements constituting the embodiment of the invention shown in the drawing, without departing from spirit of the invention, what I claim and REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,545,453 Polachek et a1. July 7, 1925 1,832,847 Lane Nov. 24, 1931 1,845,985 Plym Feb. 16, 1932 2,125,397 Owen Aug. 2,1938 2,128,870 Woelfel Aug. 30, 1938 2,131,988v Sharp Oct. 4, 1938 2,157,425 Nelson 1 May 9, 1939 2,354,341

Verhagen July 25, 1944 

